Gas-engine.



' WHT mozo G. W. WELLBR.

GAS ENGINE, APPLICATION yIEILED JULY 30,1906.

Patented Mar. 8,1910.

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G. W. WBVLLER.

GAS ENGINE. APP-IOATION FILED JULY 30,1996.

Patented Mar.8,191'0;.

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GILES W. WELLER, 0F KIMBERLY, NEVADA.

ens-ENGINE.

Specication of Letters Patent.

Patented Mar. 8, 1910.

Application led July 30, 1906. Serial No. 328,386.

WELLER, a

carbureter by means of which the feeding of the hydrocarbon fluid can beregulated and its admixture with air effected by a simple and compactarrangement forming part4 of the engine-cylinder.

Other objects and advantages of the invention will hereinafter appear,and what I claim as novel in the particular construction and combinationlof parts will be specifically setforth in the appended claims.

In' Vthe accompanying drawings, which form a part of this specification,Figure l a horizontal sectional View of a fourcylinder engine, showingan application of my invention.' Fig. 2 is a vertical transversesectional view through the cylinder heads of one pair of cylinders. Fig.3 is. an enlarged detail sectional view of the vaporizer. LikeA numeralsof reference indicate like parts'in all the views of the drawings.

As illustrated in the drawings I have shown my invention applied to afour cylinder engine, iu which 'the cylinders, 1, 2, 3 and 4 arearranged in tandem pairs parallel to each other and spaced apart, saidcylin? ders being-provided with water-jackets 5 which are extended toconnect the companion cylinders and form an intermediate casing. Eachcylinder is provided with the usual reciprocating type of piston 6. Thepistons of each pair of cylinders are directly connected together by apiston-rod 7, and said rods are-connected together"` at an intermediatepoint by means of a cross-head 8,

lwhich pass through openings therefor in the aforesaid casing. On thecross-headvis swiv-I eledV a coupling 9, forming the attachment for therods 10 10 that connect with the crank-shaft'll and travel orreciprocate between the pairs of cylinders. The connec-v proportionsbefore entering the means of a coupling 12, similar to the coupling 9 onthe cross-head, andthe crank- I shaft is' journaled in 'any approvedtype pf bearings, as 13. In this manner the plstons are all connectedtogether so that they will move in unison, and the pistons of the twopairs of cylinders are correspondingly arranged while the valvemechanisms and sparkingI devices are so timed relatively that theseveral pistons will successively receive an explosive impulse.

Inasmuch as the valve mechanism and va orizer device are the same onevery'cylin er a description of those on one will answer for all;

14 designates the cylinder-head, which is provided with thevalve-chamber 15, the gas-inlet 16 and the exhaust 17, the inlet chamberbeing extendedvto one side, as at 18,

" to provide a mixing chamber for the hydro- -carbon fluid and air.

and the exhaust-valve 20 are provided with The inlet-valve 19 i theusual stems vwhich pass downwardso through suitable bosses on thecylinderhead so that their lower ends will be in the path of the tappets21 and 22, which latter 'are operated by suitable cams 23 and 24 on theusualvalve-operating shaft 25, the said 4valves being seated by thesprings 2G, as

is usual.

Extending through the top of the cylinder-'head into the mixing chamber18 is a feed-valve for the gasolene or other hydrocarbon fluid, saidvalve comprising the valve-easing 30, having the inlet 31, and theoutlet 32, land provided with a valve-plug adapted to open and close theinlet and outlet openings alternately p to discharge only gasolene intothe mixing a certain amount of chamber at each operation of the plug.The plug'consists of two for opening and closing the inlet' and thelower part 34 for opemngiandA closing the outlet, the said lastmentioned part beingcut away circumferentially at its lower end toyprovide in conjunction with a recess 1n the casinof a liquid chamber 35.Said part- 34 is a so provided with channels 36 at its sides,

which closes theA inlet, has a channel 37, opposite the inlet so as topermit of a flow of gasolene around the same when the plug is below theinlet, in which latter position the outlet valve is closed, said channel37 parts, the upper partv which permit a flow of the liquid to thechamber 35, andthe-upper part 33,

being closed, when the plug israised, by means of the rib 33a. The part33 is connected to the part 34 by means of a screw 3'8, which isthreaded in an opening in the upper end of the part 34 and thereforead-A be operatedv by the tappet 21 which operates the gas-inlet valve,and so that both of them will be operated simultaneously. ,The gaso-,rlene feed-valve is seated by means of ka of said stem, similar to theother valves,I

spring 42 interposed between the cylinderL head and a foot-piece 43 onthe lower end and said foot-piece is provided with a fiuger orprojection 44 which overlaps a foot- '.pieee on the stem of thegas-inlet valve 1G,

to insure a simultaneous movement of these valves. In conjunction withthis gasolene feed-valve there is the usual spring-actuated air Iinletvalve 45, which is opened automatically by the suction created by thebackward movement of the piston, said air inlet valve being locatedbeyond the feed-valve Yso that theA gasolene will mix with the air onits way tothe engine cylinder.

Any approved form of sparking device may be used in connection with theengine' and suitably 'located to ignite the gases after compression -inthe engine-cyhuders- The' operation 4of the -woi'l 1ng parts of yeach.cylinder will be readily understood from'theforegoingdescription inconnection with the accompanying drawings, for upon the rearwardmovement of the piston the inlet valve 19 and gasolene feed-valve 3()will be opened through the intervention of the tappet 21and cam 23,..and'as the air is drawn through the mixing chamber 18 frein theair-inlet valve 45 it will be charged with 'a proper amount oitlgasolene generating a gas that is drawn into the engine-cylinder by thesuction created by the movement of the piston iilling the cylinder andvalve-4 chamber, and at the end of the outward movement of the' pistonthe valves 45, 30 and 19 will all close automatically. Upon thel returnstroke of the pistn the gas is compressed and at the proper time asparkring device (not shown) is operated, causing aspark which ignitesthe gasand gives an explosive impulse to the piston driving it rearward,and upon the return of the piston the outlet or exhaust valve 20 is-opened by the cam 24 permitting the exploded gases to escapegeafterwhich the piston again moves rearwardtaking in another supply of gas,and so on. This operation is reexhausting.

p'eated in the' other cylinders and so that the several pistons willreceive an explosive ini pulse in succession that is to say, when thecylinder 1 is taking in a supply of gas cyiin# der 2 is compressing itssupply otgas pre- 7oviou'sly taken in, while cylinder 3 is-receiving anexplosive impulse and cylinder 4 is Thustlie successive explosiveimpulses are transmitted to the crankshaft successively and uponeachhalf rotation of said shaft. l

.Having thus described my invention, -I

claim .1. In a' gas engine of the character describe-d, the combinationwitlrthe cylinder headv having the usual gas inlet and exhaust valvesand a` mixing vchamber beyond the gas inletvalve, of agasoleneJfeedwalve depending into the mixing chamber and having an inletopening at its upper end and an o`utlet opening at its lower end and aplug adapted to alternately close the inlet and outlet opeir ings;together with means ior operating the plug simultaneouslywith theoperation et the gas inlet-valve. v' Y 2. In a gas engine, .thecombination with the cylinder head having the usual gas inlet andlexhaust valves and a mixing' chamber belowthe gas inlet valve, ofagasolene feed L valve dependinginto lthe mixing chambeig5 andcomprising a casing or tube with an nlet'openingat itsupper end and anoutlet opening at its lower end, a plug located in the casing having acavity at-its lower end iormin r a li uid chamber and a cavit` near eioo its u-pper end form-ing an auxiliary liquid chamber, and means forincreasing. and decreasing the size o1 said latter cavity.

3. In a gas engine, the combination with the cylinder head having theusual gas inlet` lo and exhaust valves, a'niixing chamber below theinlet valve and a spring actuated air inlet valve at 'the outer end ofsaid chain-- ber, of a gasolene feed valve depending into the mixingclia'mberand comprising a casing n@ or. lube having inlet. and outletopenin 's at i its upper and .lower ends, respective? a plug'located inthe tube and having a cavity at'its lower end forming a liquidchamberand`a cavity near its upper end forming an v auxiliary liquidchamber, and means for iiicreasing and decreasing the size of saidlatter cavity, said plug being so arranged as to close the feed'openingwhen raised to open the outlet, and means for operating said valvesimultaneously with the operation of the gas inlet valve'.

4. In a gas engine, the combination with the cylinder head havingthevusual gas inlet and exhaust v'alves, a mixing chamber below 125 thegasiinlet valve anda spring-actuated air inlet valve -at. the outerv endof the mixing chamber, of aA ga solene. feed valve .depending -intothemixing chamberand comprising a tubewith inlet'and outlet openings at the130 upper and lower ends respectively, a. twopart plug adapted to openand close said lopenings alternately and provide aliquid space betweenthem, and 'a screw connecting the parts of the plug to adjust one withre-y spect to the other so as to increase or decrease the liquid space;together with means for operating the valve simultaneously-with theoperation of the gas inlet valve.

- 5. AIn a'gas engine,`the combination with the cylinder head having theusual gas inlet and exhaust valves, of a mixing chamber belowl saidinlet valve, a spring-actuatedair' crease `the liquid space betweenthem, saidA screw projecting up through vthe casing of' the valve;together with means for operating the valve simultaneously with theoperation of the gas inlet valve.

6. In a gas en ine, the combination with the cylinder-hea having a gasinlet valve, a mixing chamber below said inlet valve and aspringactuated air inlet valve at the outer end of said mixing chamber,of agasolene feed-valvedepending into the mixing chamber through .thetop of the cylinder-head comprising a casing or tube having inlet andouter openings at the upper and lower ends respectively, averticallymovable plug adapted to close said openings alternately and providedwith a liquid Space at its lower end, and a stem depending from the plugthrough the bottom of the c" linder-head; to-

gether with a tappet exten ing beneath the stems of the aforesaid inletand feed valves,

and a cam for. operati-ng said tappet.

7. In 'a gas engine, the combination with the cylinder-head having a gasinlet valve, a mixing chamber below said inlet valve and aspring-actuated air inlet valve at 'the outer end of said mixingchamber, of la gasolene feed-valve depending int-o themixing chamberthrough the top of, the cylinder head comprising a casing or tube havinginlet and outlet openings at its upper and lower ends respectively, atwo-part vertically movable plug ada ted to open and close said openings"alternate y, a screw connecting said parts of' the plug to provide avariable liquid space betweeirthem, a stem depending from the plugthrough the bottom of thecylinderhead, and a foot-piece on the lower endof the stem having a projection which overlaps a shoulder on the lowerend of the stem -of the gas inlet valve; together with a tappet passingunder the stems of the gas-inlet and the gasolene feed valves, 'and acam operating said tappet, substantially as shown and for the purposeset forth.

In testimony whereof I have signed my name 'to this speciication in the"presence of two subscribing witnesses.

GILES Witnesses:

G. F. BOREMAN,

JOHN M. Hown.

w. WELLER

